【二维导电高分子聚乙炔中的电子态、元激发及其局或振动模】李占杰.pdf
THE ELECTRONIC STATES,EXCITATIONS AND LOCALIZEDVIBRATIONAL MODESFOR2D CONDUCTINGPOLYMER(CH)x Ph.D.Dissertation Li Zhanjie Huazhong University of Science and Technology Wuhan,P.R.
ABSTRACT In this paper,we have studied the energy spectra of trans polyacetylene anditslocalizedvibrationalmodesaroundlocalexcitations(soliton polaronandsolitonlattice)basedonatwo dimensionalextensionofSSH model,and successfully interpreted the observed infrared absorption peaks in boththelightlyd
目录 第一章综述 S1引言 S1聚乙炔中的几种元激发 3 S1SSH模型和TLM模型 1TLM模型的解析解 9 1.SSH模型的数值解 1本文的工作和目的 第二章反式聚乙炔孤子的二维局域振动模 2二维聚乙炔中的孤子解 16 .2反式聚乙炔孤子的二维局域模 2bond-bending项对二维局域模的影响第三章电子相互作用和杂质钉扎效应 S3Hubbard作用对荷电孤子能级的影响 S3电子关联对中性孤子能级的影响 3孤子附近新的二维红外局域振动模 38 第四章反式聚乙炔中非近邻电子跳跃 4.